Valve.



J. A. WILSON.

VALVE.

APPLICATION 2mm SEPT. 16, 1913.

1,093,514, v Patented Apr. 14, 1914 INVENTOR .v at imv Untitled] t i: rev" vii it. it nlfi l wir ii s JOHN A. WILSON, (DE DETROIT, MICHEG-Alll, flSSIG-IBTQR OF ONE-HALF T0 GEORGE IVIQQRE, G1? DETROIT, MIGHTG-ihhl.

VALVE.

weenie.

specification of Letters Eatent.

Patented Apr. lid, 119th Application filed September 16, 193.3. Serial lilo. 7 10,0634.

To all whom "it may concern Be it known that T, JOHN A. VViLsoN, a citizen of the United States, and a resident of Detroit, in the county oi 'll ayne and State of ltiichigan, have invented a new and Improved Valve, of which. the following is a full, clear, and exact description.

This invention relates to steam. fitting or water distribution, and has particular reference to a novel form of valve having the capability oi being repaired without the necessity for shutting oil the flow of steam or other fluid through the main pipe.

More specifically stated, the primary object of the invention is to provide a valve body having a valve opening on one side,

said opening to be closed by a special formof plug and bushing, the plug carrying the valve stem, and there being" provided a pivoted check valve adapted to close automatically against the inner edge of the bushing when the valve is removed.

The foregoing and other objects of the invention will hereinafter he more fully described and claimed and illustrated in the drawings forming a part of this specifica tion in which like characters oi reference indicate corresponding parts in all the views, and invvhich- Figure l is a longitudinal section of a device made in accordance with this invention, showing the valve closed; Fig, 52 is a trans-- verse section of the same, but indicating the valve removed and a reainer applied to dress the valve seat; and Fig. 3 is a view corresponding to Fig. 1, hut indicating the valve removed and the check valve closed.

The several parts of the device may he made of any suitable materials, and the relative sizes and proportions, W'Bll as the general design of the mechanism, may be varied to a considerable extent Without departing from the spirit of the invention hereinafter more fully set forth and specifically claimed.

The numeral 10 indicates 'suitahle form or design of valve body or casing; through which a fluid is presumed to flow in the direction indicated by the arrows. Said casingis provided with a valve seat 11 to which is fitted a valve 12. The side oi the valve casing opposite the valve seat is titted with a screw threaded bushing 18 and into the bushing is tapped. plug it tl'irough which a valve stem 15 extends. A. gland 16 provides a substantially tight joint between valve stem and the plug, as is usual in. this type of devices. H

A. check valve 17 of substantially dish. form is pivoted at 18 adjacent the inner end of the bushing 13 and a spring 19 acts thereupon to cause the check valve to assume the position shown in Fig. 3 when the valve 1% and stem are removed,in other Words,- sealing the outlet which would otherwis' exist through the bushing. The valve, hoivever, may readily be forced inwardly through the bushing, causing the check valve to he moved out of the way against the torn sion of the spring 19, as shown'in Fig. 1.

The means for connecting the valve to the valve stem is peculiar and comprises ahead 20 formed on the inner end of the valve stem and having loose connection with the valve by means of a hollow nut 21 surrounding the valve stem and head and tapped into a pocket 22 formed in the outer side of thevalve.

The valve is opened in the usual way by unscrewing the valve stem in the nut 14:, the valve, however, holding" the check valve open at all times when within the casing. Should the valve seat or valve require to he tru-ed or dressed, the valve plug 14 will he on screwed and thereby the valve will he re moved from the valve body and plug, and

the check valve 17 will close the opening as above set forth. The steam or other fluid may then pass freely through the main line as usual. The same valve stem is adapted to be used tor the dressing of the valve seat by to unscrewing the valve from the nut 21 and applying a rearner of the form shown at 23 to the same valve stem. Said reamer is preferahly provided with one or more pins 24:

adapted to project through as many holes in an the h .ad 20. ll. spring 25 is introduced between the head the closed end of the nut 21 to cause the reamcr to remain interlocked with the valve stem head for rotation therewith. preferably provided with a projection 26 which serves to unseat the check valve 'oreliminai'y to the introduction thereof into the passage through the valve casing. When the i. may he minted valve stem freely for the purpose of t ling or dressing the valve 4 Likewise the Le 12 may be dressed y suitable means before lacing replaced. e hustling provides The reanier as well as the valve is earner is shoved. into the valve seat it means for permitting 11o the introduction of the check valve and it constitutes a seat .thereforwhen the check valve is operated to close the outsideopening of the casing.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

In a valve of the character set forth, the

combination of a valve casing having a valve seat and an opening opposite the same, a bushing secured in said opening, a check valve pivoted within the casing adjacent the inner edge of said bushing adapted to close said opening, a plug removably secured in 

